void enable_irq(unsigned int irq)
{
register unsigned int t;
if ((irq >= IRQ_GPIO_0) && (irq <= IRQ_GPIO_0 + NUM_GPIO)) {
__gpio_unmask_irq(irq - IRQ_GPIO_0);
t = (irq - IRQ_GPIO_0) >> 5;
gpio_irq_mask[t] |= (1 << ((irq - IRQ_GPIO_0) & 0x1f));
__intc_unmask_irq(IRQ_GPIO0 - t);
} else if ((irq >= IRQ_DMA_0) && (irq < IRQ_DMA_0 + NUM_DMA)) {
/* Really do USB detection */
static int do_usb_detect(struct uh_data *uh)
{
int rv;
D("Called.\n");
__intc_mask_irq(IRQ_OTG);
/* Now enable PHY to start detect */
__cpm_enable_otg_phy();
/* Clear IRQs */
REG16(USB_REG_INTRINE) = 0;
REG16(USB_REG_INTROUTE) = 0;
REG8(USB_REG_INTRUSBE) = 0;
/* disable UDC IRQs first */
REG16(USB_REG_INTRINE) = 0;
REG16(USB_REG_INTROUTE) = 0;
REG8(USB_REG_INTRUSBE) = 0;
/* Disable DMA */
REG32(USB_REG_CNTL1) = 0;
REG32(USB_REG_CNTL2) = 0;
/* Enable HS Mode */
REG8(USB_REG_POWER) |= USB_POWER_HSENAB;
/* Enable soft connect */
REG8(USB_REG_POWER) |= USB_POWER_SOFTCONN;
rv = usb_is_active();
/* Detect finish ,clean every thing */
/* Disconnect from usb */
REG8(USB_REG_POWER) &= ~USB_POWER_SOFTCONN;
/* Disable the USB PHY */
__cpm_suspend_otg_phy();
/* Clear IRQs */
REG16(USB_REG_INTRINE) = 0;
REG16(USB_REG_INTROUTE) = 0;
REG8(USB_REG_INTRUSBE) = 0;
__intc_ack_irq(IRQ_OTG);
__intc_unmask_irq(IRQ_OTG);
return rv;
}
static void enable_dma_irq(unsigned int irq)
{
unsigned int intc_irq;
if ( irq < (IRQ_DMA_0 + HALF_DMA_NUM) ) /* DMAC Group 0 irq */
intc_irq = IRQ_DMAC0;
else if ( irq < (IRQ_DMA_0 + MAX_DMA_NUM) ) /* DMAC Group 1 irq */
intc_irq = IRQ_DMAC1;
else {
printk("%s, unexpected dma irq #%d\n", __FILE__, irq);
return;
}
__intc_unmask_irq(intc_irq);
__dmac_channel_enable_irq(irq - IRQ_DMA_0);
}
void board_do_sleep(void)
{
int no_change;
int data = ~0;
/* set SLEEP mode */
CMSREG32(CPM_LCR, 0x1, 0x3);
board_powerdown_device();
board_save_gpio(gpio_save);
/* GPIO - A */
no_change = 1 << 16 | 1 << 17 | 1 << 26 | 1 << 27;
REG_GPIO_PXFUNC(0) = data & ~no_change;
REG_GPIO_PXSELC(0) = data & ~no_change;
REG_GPIO_PXDIRC(0) = data & ~no_change;
REG_GPIO_PXPES(0) = data & ~no_change; /* disable pull */
/* GPIO - B */
no_change = 1 << 5 | 1 << 20 | 1 << 23 | 1 << 25 | 1 << 30;
REG_GPIO_PXFUNC(1) = data & ~no_change;
REG_GPIO_PXSELC(1) = data & ~no_change;
REG_GPIO_PXDIRC(1) = data & ~no_change;
REG_GPIO_PXPES(1) = data & ~no_change; /* disable pull */
/* GPIO - C */
no_change = 0x0;
REG_GPIO_PXFUNC(2) = data & ~no_change;
REG_GPIO_PXSELC(2) = data & ~no_change;
REG_GPIO_PXDIRC(2) = data & ~no_change;
REG_GPIO_PXPES(2) = data & ~no_change; /* disable pull */
/* GPIO - D */
no_change = 1 << 17 | 1 << 18 | 1 << 19 | 1 << 27;
REG_GPIO_PXFUNC(3) = data & ~no_change;
REG_GPIO_PXSELC(3) = data & ~no_change;
REG_GPIO_PXDIRC(3) = data & ~no_change;
REG_GPIO_PXPES(3) = data & ~no_change; /* disable pull */
/* GPIO - E */
no_change = 1 << 0 | 1 << 4 | 1 << 10 | 1 << 11 | 1 << 26 | 1 << 8 | 1 << 3;
REG_GPIO_PXFUNC(4) = data & ~no_change;
REG_GPIO_PXSELC(4) = data & ~no_change;
REG_GPIO_PXDIRC(4) = data & ~no_change;
REG_GPIO_PXPES(4) = data & ~no_change; /* disable pull */
__gpio_clear_pin(32 * 4 + 0);/* close lcd and bl*/
__gpio_set_pin(32 * 4 + 3);
__gpio_as_output(32 * 4 + 0);
__gpio_as_output(32 * 4 + 3);
/* GPIO - F */
no_change = 1 << 10 | 1 << 11 | 1 << 5 | 1 << 7;
REG_GPIO_PXFUNC(5) = data & ~no_change;
REG_GPIO_PXSELC(5) = data & ~no_change;
REG_GPIO_PXDIRC(5) = data & ~no_change;
REG_GPIO_PXPES(5) = data & ~no_change; /* disable pull */
__gpio_as_irq_fall_edge(PWR_WAKE);
__gpio_unmask_irq(PWR_WAKE);
__intc_unmask_irq(17); /* unmask IRQ_GPIOn depends on GPIO_WAKEUP */
__gpio_as_irq_rise_edge(32*1+5);
__gpio_unmask_irq(32*1+5);
__intc_unmask_irq(16); /* unmask IRQ_GPIOn depends on GPIO_WAKEUP */
#if 0 /*here we do not need other pin to wake up.*/
__gpio_as_irq_fall_edge(VOL_ADD);
__gpio_as_irq_rise_edge(VOL_SUB);
__gpio_unmask_irq(VOL_ADD);
__gpio_unmask_irq(VOL_SUB);
__intc_unmask_irq(14); /* unmask IRQ_GPIOn depends on VOL_ADD */
__intc_unmask_irq(12); /* unmask IRQ_GPIOn depends on VOL_SUB */
#endif
/* disable externel clock Oscillator in sleep mode */
CLRREG32(CPM_OPCR, 1 << 4);
/* select 32K crystal as RTC clock in sleep mode */
SETREG32(CPM_OPCR, 1 << 2);
/* Clear previous reset status */
CLRREG32(CPM_RSR, 0x7);
mdelay(50);
__asm__(".set\tmips3\n\t"
"sync\n\t"
"wait\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
".set\tmips0");
}
static void enable_intc_irq(unsigned int irq)
{
__intc_unmask_irq(irq);
}
static void enable_dma_irq(unsigned int irq)
{
__intc_unmask_irq(IRQ_DMAC);
__dmac_channel_enable_irq(irq - IRQ_DMA_0);
}
static int jz_pm_do_sleep(void)
{
unsigned long delta;
unsigned long nfcsr = REG_EMC_NFCSR;
unsigned long opcr = REG_CPM_OPCR;
unsigned long imr = REG_INTC_IMR;
unsigned long sadc = REG_SADC_ENA;
unsigned long sleep_gpio_save[7*(GPIO_PORT_NUM-1)];
printk("Put CPU into sleep mode.\n");
/* Preserve current time */
delta = xtime.tv_sec - REG_RTC_RSR;
/* Disable nand flash */
REG_EMC_NFCSR = ~0xff;
/* stop sadc */
REG_SADC_ENA &= ~0x7;
while((REG_SADC_ENA & 0x7) != 0);
udelay(100);
/*stop udc and usb*/
__cpm_suspend_uhcphy();
__cpm_suspend_udcphy();
/* Sleep on-board modules */
jz_board_do_sleep(sleep_gpio_save);
/* Mask all interrupts */
REG_INTC_IMSR = 0xffffffff;
/* Just allow following interrupts to wakeup the system.
* Note: modify this according to your system.
*/
/* enable RTC alarm */
__intc_unmask_irq(IRQ_RTC);
#if 0
/* make system wake up after n seconds by RTC alarm */
unsigned int v, n;
n = 10;
while (!__rtc_write_ready());
__rtc_enable_alarm();
while (!__rtc_write_ready());
__rtc_enable_alarm_irq();
while (!__rtc_write_ready());
v = __rtc_get_second();
while (!__rtc_write_ready());
__rtc_set_alarm_second(v+n);
#endif
/* WAKEUP key */
__gpio_as_irq_rise_edge(GPIO_WAKEUP);
__gpio_unmask_irq(GPIO_WAKEUP);
__intc_unmask_irq(IRQ_GPIO0 - (GPIO_WAKEUP/32)); /* unmask IRQ_GPIOn depends on GPIO_WAKEUP */
/* disable externel clock Oscillator in sleep mode */
__cpm_disable_osc_in_sleep();
/* select 32K crystal as RTC clock in sleep mode */
__cpm_select_rtcclk_rtc();
/* Enter SLEEP mode */
REG_CPM_LCR &= ~CPM_LCR_LPM_MASK;
REG_CPM_LCR |= CPM_LCR_LPM_SLEEP;
__asm__(".set\tmips3\n\t"
"wait\n\t"
".set\tmips0");
/* Restore to IDLE mode */
REG_CPM_LCR &= ~CPM_LCR_LPM_MASK;
REG_CPM_LCR |= CPM_LCR_LPM_IDLE;
/* Restore nand flash control register */
REG_EMC_NFCSR = nfcsr;
/* Restore interrupts */
REG_INTC_IMSR = imr;
REG_INTC_IMCR = ~imr;
/* Restore sadc */
REG_SADC_ENA = sadc;
/* Resume on-board modules */
jz_board_do_resume(sleep_gpio_save);
/* Restore Oscillator and Power Control Register */
REG_CPM_OPCR = opcr;
/* Restore current time */
xtime.tv_sec = REG_RTC_RSR + delta;
return 0;
}
